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b24c88b3 RC |
1 | /* |
2 | * Copyright (c) 2001, Robert Collins. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * A copy of the GNU General Public License can be found at | |
10 | * http://www.gnu.org/ | |
11 | * | |
12 | * Written by Robert Collins <rbtcollins@hotmail.com> | |
13 | * | |
14 | */ | |
15 | ||
16 | #if 0 | |
17 | static const char *cvsid = | |
18 | "\n%%% $Id$\n"; | |
19 | #endif | |
20 | ||
21 | ||
22 | #include "win32.h" | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
ca9506cc | 25 | #include <errno.h> |
b24c88b3 RC |
26 | #include "log.h" |
27 | #include "port.h" | |
28 | #include "mount.h" | |
29 | #include "mkdir.h" | |
30 | #include "mklink2.h" | |
31 | #include <unistd.h> | |
341988b9 | 32 | #include "filemanip.h" |
b24c88b3 RC |
33 | |
34 | #include "io_stream.h" | |
35 | #include "io_stream_cygfile.h" | |
36 | ||
37 | /* For set mtime */ | |
38 | #define FACTOR (0x19db1ded53ea710LL) | |
39 | #define NSPERSEC 10000000LL | |
40 | ||
41 | static void | |
42 | get_root_dir_now () | |
43 | { | |
3c054baf | 44 | if (get_root_dir ().size()) |
b24c88b3 RC |
45 | return; |
46 | read_mounts (); | |
47 | } | |
48 | ||
3c054baf | 49 | io_stream_cygfile::io_stream_cygfile (String const &name, String const &mode) : fp(), fname() |
b24c88b3 | 50 | { |
b24c88b3 | 51 | errno = 0; |
3c054baf | 52 | if (!name.size() || !mode.size()) |
b24c88b3 RC |
53 | return; |
54 | ||
55 | /* do this every time because the mount points may change due to fwd/back button use... | |
56 | * TODO: make this less...manual | |
57 | */ | |
58 | get_root_dir_now (); | |
3c054baf | 59 | if (!get_root_dir ().size()) |
b24c88b3 RC |
60 | /* TODO: assign a errno for "no mount table :} " */ |
61 | return; | |
62 | ||
1ac649ed | 63 | fname = cygpath (name); |
3c054baf RC |
64 | lmode = mode; |
65 | fp = fopen (fname.cstr_oneuse(), mode.cstr_oneuse()); | |
b24c88b3 RC |
66 | if (!fp) |
67 | lasterr = errno; | |
68 | } | |
69 | ||
70 | io_stream_cygfile::~io_stream_cygfile () | |
71 | { | |
b24c88b3 RC |
72 | if (fp) |
73 | fclose (fp); | |
e9440f0f | 74 | destroyed = 1; |
b24c88b3 RC |
75 | } |
76 | ||
77 | /* Static members */ | |
78 | int | |
3c054baf | 79 | io_stream_cygfile::exists (String const &path) |
b24c88b3 RC |
80 | { |
81 | get_root_dir_now (); | |
1ac649ed | 82 | if (get_root_dir ().size() && _access (cygpath (path).cstr_oneuse(), 0) == 0) |
b24c88b3 RC |
83 | return 1; |
84 | return 0; | |
85 | } | |
86 | ||
87 | int | |
3c054baf | 88 | io_stream_cygfile::remove (String const &path) |
b24c88b3 | 89 | { |
3c054baf | 90 | if (!path.size()) |
b24c88b3 RC |
91 | return 1; |
92 | get_root_dir_now (); | |
3c054baf | 93 | if (!get_root_dir ().size()) |
b24c88b3 RC |
94 | /* TODO: assign a errno for "no mount table :} " */ |
95 | return 1; | |
96 | ||
1ac649ed | 97 | unsigned long w = GetFileAttributes (cygpath (path).cstr_oneuse()); |
b24c88b3 RC |
98 | if (w != 0xffffffff && w & FILE_ATTRIBUTE_DIRECTORY) |
99 | { | |
1ac649ed | 100 | char tmp[cygpath (path).size() + 10]; |
b24c88b3 RC |
101 | int i = 0; |
102 | do | |
103 | { | |
3c054baf | 104 | ++i; |
1ac649ed | 105 | sprintf (tmp, "%s.old-%d", cygpath (path).cstr_oneuse(), i); |
b24c88b3 RC |
106 | } |
107 | while (GetFileAttributes (tmp) != 0xffffffff); | |
108 | fprintf (stderr, "warning: moving directory \"%s\" out of the way.\n", | |
3c054baf | 109 | path.cstr_oneuse()); |
1ac649ed | 110 | MoveFile (cygpath (path).cstr_oneuse(), tmp); |
b24c88b3 | 111 | } |
1ac649ed | 112 | return !DeleteFileA (cygpath (path).cstr_oneuse()); |
b24c88b3 RC |
113 | } |
114 | ||
115 | int | |
3c054baf | 116 | io_stream_cygfile::mklink (String const &from, String const &to, |
b24c88b3 RC |
117 | io_stream_link_t linktype) |
118 | { | |
3c054baf | 119 | if (!from.size() || !to.size()) |
b24c88b3 RC |
120 | return 1; |
121 | switch (linktype) | |
122 | { | |
123 | case IO_STREAM_SYMLINK: | |
1ac649ed | 124 | return mkcygsymlink (cygpath (from).cstr_oneuse(), to.cstr_oneuse()); |
b24c88b3 RC |
125 | case IO_STREAM_HARDLINK: |
126 | { | |
127 | /* For now, just copy */ | |
128 | /* textmode alert: should we translate when linking from an binmode to a | |
129 | text mode mount and vice verca? | |
130 | */ | |
1ac649ed | 131 | io_stream *in = io_stream::open (cygpath (to), "rb"); |
b24c88b3 RC |
132 | if (!in) |
133 | { | |
3c054baf | 134 | log (LOG_TIMESTAMP, String("could not open ") + to +" for reading in mklink"); |
b24c88b3 RC |
135 | return 1; |
136 | } | |
1ac649ed | 137 | io_stream *out = io_stream::open (cygpath (from), "wb"); |
b24c88b3 RC |
138 | if (!out) |
139 | { | |
3c054baf | 140 | log (LOG_TIMESTAMP, String("could not open ")+ from + " for writing in mklink"); |
b24c88b3 RC |
141 | delete in; |
142 | return 1; | |
143 | } | |
144 | ||
3c054baf | 145 | if (io_stream::copy (in, out)) |
b24c88b3 | 146 | { |
3c054baf RC |
147 | log (LOG_TIMESTAMP, String ("Failed to hardlink ")+ from + "->" +to + |
148 | " during file copy."); | |
149 | delete in; | |
150 | delete out; | |
151 | return 1; | |
b24c88b3 RC |
152 | } |
153 | delete in; | |
154 | delete out; | |
3c054baf | 155 | return 0; |
b24c88b3 RC |
156 | } |
157 | } | |
158 | return 1; | |
159 | } | |
160 | ||
161 | ||
162 | /* virtuals */ | |
163 | ||
7c7034e8 RC |
164 | ssize_t |
165 | io_stream_cygfile::read (void *buffer, size_t len) | |
b24c88b3 RC |
166 | { |
167 | if (fp) | |
168 | return fread (buffer, 1, len, fp); | |
169 | return 0; | |
170 | } | |
171 | ||
7c7034e8 RC |
172 | ssize_t |
173 | io_stream_cygfile::write (const void *buffer, size_t len) | |
b24c88b3 RC |
174 | { |
175 | if (fp) | |
176 | return fwrite (buffer, 1, len, fp); | |
177 | return 0; | |
178 | } | |
179 | ||
7c7034e8 RC |
180 | ssize_t |
181 | io_stream_cygfile::peek (void *buffer, size_t len) | |
b24c88b3 | 182 | { |
b24c88b3 RC |
183 | if (fp) |
184 | { | |
7c7034e8 RC |
185 | int pos = ftell (fp); |
186 | ssize_t rv = fread (buffer, 1, len, fp); | |
b24c88b3 RC |
187 | fseek (fp, pos, SEEK_SET); |
188 | return rv; | |
189 | } | |
190 | return 0; | |
191 | } | |
192 | ||
193 | long | |
194 | io_stream_cygfile::tell () | |
195 | { | |
196 | if (fp) | |
197 | { | |
198 | return ftell (fp); | |
199 | } | |
200 | return 0; | |
201 | } | |
202 | ||
ca9506cc RC |
203 | int |
204 | io_stream_cygfile::seek (long where, io_stream_seek_t whence) | |
205 | { | |
206 | if (fp) | |
7c7034e8 RC |
207 | { |
208 | return fseek (fp, where, (int) whence); | |
209 | } | |
ca9506cc RC |
210 | lasterr = EBADF; |
211 | return -1; | |
212 | } | |
213 | ||
b24c88b3 RC |
214 | int |
215 | io_stream_cygfile::error () | |
216 | { | |
217 | if (fp) | |
218 | return ferror (fp); | |
219 | return lasterr; | |
220 | } | |
221 | ||
222 | int | |
3c054baf | 223 | cygmkdir_p (enum path_type_t isadir, String const &name) |
b24c88b3 | 224 | { |
3c054baf | 225 | if (!name.size()) |
b24c88b3 RC |
226 | return 1; |
227 | get_root_dir_now (); | |
3c054baf | 228 | if (!get_root_dir ().size()) |
b24c88b3 RC |
229 | /* TODO: assign a errno for "no mount table :} " */ |
230 | return 1; | |
1ac649ed | 231 | return mkdir_p (isadir == PATH_TO_DIR ? 1 : 0, cygpath (name).cstr_oneuse()); |
b24c88b3 RC |
232 | } |
233 | ||
b24c88b3 RC |
234 | int |
235 | io_stream_cygfile::set_mtime (int mtime) | |
236 | { | |
3c054baf | 237 | if (!fname.size()) |
b24c88b3 RC |
238 | return 1; |
239 | if (fp) | |
240 | fclose (fp); | |
241 | long long ftimev = mtime * NSPERSEC + FACTOR; | |
242 | FILETIME ftime; | |
243 | ftime.dwHighDateTime = ftimev >> 32; | |
244 | ftime.dwLowDateTime = ftimev; | |
245 | HANDLE h = | |
3c054baf | 246 | CreateFileA (fname.cstr_oneuse(), GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, |
b24c88b3 RC |
247 | 0, OPEN_EXISTING, |
248 | FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS, 0); | |
249 | if (h) | |
250 | { | |
251 | SetFileTime (h, 0, 0, &ftime); | |
252 | CloseHandle (h); | |
bb849dbd | 253 | #if 0 |
b24c88b3 RC |
254 | fp = fopen (fname, lmode); |
255 | if (!fp) | |
256 | lasterr = errno; | |
bb849dbd | 257 | #endif |
b24c88b3 RC |
258 | return 0; |
259 | } | |
bb849dbd RC |
260 | #if 0 |
261 | // this results in truncated files. | |
262 | // also, semantically, it's nonsense, you cannot write to a file after setting the | |
263 | // mtime without changing the mtime | |
b24c88b3 RC |
264 | fp = fopen (fname, lmode); |
265 | if (!fp) | |
266 | lasterr = errno; | |
bb849dbd | 267 | #endif |
b24c88b3 RC |
268 | return 1; |
269 | } | |
7c7034e8 RC |
270 | |
271 | int | |
3c054baf | 272 | io_stream_cygfile::move (String const &from, String const &to) |
7c7034e8 | 273 | { |
3c054baf | 274 | if (!from.size() || !to.size()) |
7c7034e8 RC |
275 | return 1; |
276 | get_root_dir_now (); | |
3c054baf | 277 | if (!get_root_dir ().size()) |
7c7034e8 RC |
278 | /* TODO: assign a errno for "no mount table :} " */ |
279 | return 1; | |
1ac649ed | 280 | return rename (cygpath (from).cstr_oneuse(), cygpath (to).cstr_oneuse()); |
7c7034e8 | 281 | } |
341988b9 RC |
282 | |
283 | size_t | |
284 | io_stream_cygfile::get_size () | |
285 | { | |
3c054baf | 286 | if (!fname.size() ) |
341988b9 RC |
287 | return 0; |
288 | return get_file_size (fname); | |
289 | } |